Attachment for incandescent-lamp sockets.



L. H. HARDING.

ATTACHMENT FOR INGANDESGENT LAMP socxms.

APPLICATION FILED SEPT. 6, 1910.

Patented Apr. 18, 1911.

WITNSSES:

INVENTOR f/ f/ara fizq.

er dy mk ATTORNEYS.

iinrrnn snares Parana: carton ceases.

Specification of letters-Patent.

- ATTACHMENT non monnnnsonn'r-Lanr SOCKETS;-

latented'rtpr. 18,1911.

Application filed September 6, 1910. "Serial No. 580,732.

To all whom t'tmay concern:

Be it known that I, LEONARD H. HARDING, a citizen of the United States, and residing at Brooklyn, inthe county of 'Kings and State of New York, have invented certain new and useful Improvements in Attachments for Incandescent-Lamp Sockets, of

which the following'is a specification, such as will enable those skilled in the art to which it appertains to make and use the same.

This invention relates to incandescent lamp sockets and particularly to what are known as pull sockets, and further to sockets of this class having ing the circuit making vices within said socket;

a chain for operatand breaking deand the ObJQCt of the invention isto provide improved means for operating; said chain and at the sametime hold it. out of connection. orcontact with the globe or shade of the light.

The invention is fully disclosed in;the:fol lowing specification, of which-the accom-.- panying drawin forms-a part, in.whichthe separate parts 0 any improvementiare-desig .nated by suitable reference characters, inv

each of the views, and in which Figure l is aside viewshowing in dotted. lines-an electric light "socket of the class referred to and showing the chain for op-M eratingthe circuit making and breaking devices within said socket and 'showingmyimproved means..for operating said chain;

- Fig. '2- a planview-of anarmwwhich forms'apart of my improvement; Fig. 3 a side- View thereof; Fig. 4t a side view of abell-erank lever which; forms apart ofmyimpr'ovee ment; Fig.'5 a planv'ewof said leverlaFig.

. v6' a plan view of complete a,tatgatclirrre nt.-

arrow m in Fig. 6

' lamp socket being plan of the deviceand also showingor indicating-thermethod' of its operation, said. figure being also a q as shown in Fig. 1, and 9 Fig. 7 a View looking in the directionofthe and' als'o in the direction of the arrow an in Fig. 1, only. a part. of, the indicated in dotted lines. In the dra'wing forming part of this spc'cifi'cation, Iyhave; shown in dotted ineslailamp socket-c ot the class specified, the tijettomportion of which is provided with a neckta below which is an annular bead a and in practice an electric light is connected with the said socket below the bead 4 tll e usual manner, said light being not shown.

in the practice of my invention I provide on ,the'said lever by .an arm 6' composed of a strip of metal bent centrally to form a collar b and, projecting end members 6 which form the body porftion or operative portion of said arm. The parts 72 of thearm Z; are separated adjacent to the collar 6 but the free ends thereof are brought approximately together and are parallel as shown at 12 and passing'through the parts 6 of the arm I adjacent to the collar 6 is a screw or bolt 6 having a nut Z). Mounted in the outer end ofthe arm 6 and between the separate partst-hereo-f is'a bell crank lever 0, said'lever consisting of a onger arm 0" provided at one end with a shorter arm a. The lever is composed of sheet metal and the arm k' thereof is bent over and at an angle of'aboutsixty five degrees to the arm 0 tl1ereof,-and the end portion of the arm 0 opposite the arm 0 is: bent into a planeat right angles to the. plane. of said arm'as shown at c, and is preferably provided with an aperture 0 and suspended from said arm 0 is a cord orother flexible device 07- bywhich the lever c in practice isoperatedt. I

, The arm 0 of. the lever a is placed between the-endso*- ofthe-parts c of the arm b and; pivoted therein bytme'ans of'a bolt or screw e provided-with a. nut;e and thefoldat c of the'leven c prevents the connected end portions.oi the arms,c and c of said lever from dropping down between-the parts b of the arm B-inthepperation of. the device; as hereinafter desoribed.-. J l

The socket a is prov-idedwa-tone side there of and laterally of the middle ofsaid side; with a. tubular; bell shaped. neck f. through which isrpassed. a chain .9, which operates the circuit. making.- and-breaking devices. within said socket, and the arm. ofwthe; lever c is-provided adjacent toithe end thereof with which the arm of. sai lever is connected with aninclined slot-"or recess 0 the neck'ffthrough which the chain 9. passes,

andbypassing the said chain transversely.

the "lever c in the mani'i snshdwn' a pull meansfof the cord tiff ;neck f, said pull being axial of and through V said neck.

cally drawn The circuit making and breaking devices within the socket a are of such construction and operation that when the chain gis pulled outwardly by the'lever c it is automatibaek into said socket and the normal position of the lever 0 is that shown in Fig. l, and when. said lever is pulled down-- wardly by. the cord d and the pull on said cord is released the chain 9 is automatically drawn back within the socket a, and the circuit is closed and anotheroperation of the lever c in the same manner will result in opening.

said circuit.

The construction of the socket a and the circuit making and breaking mechanism located therein and the use of the chain g for opening and closing the circuit are well through the parts -co1lar a by means of the'bolt'or screw 7),

and breaking device in known and form no part of my invention, my said invention being limited to the par 'ticular means shown and described for operating the chain 9.

With my in'i-provement the chain r is held out of contact with the lamp shadeor globe at all times and by reason of the particular construction and connection of the arm b and lever 0 and the method of connecting the chain 9 with the said lerer the pull on thecord d necessary to operate said lever as described is very slight and the force necessary to operate said lever is much less than-with other means heretofore employed for operating the chain g. It-will be un derstood that the-arm Z) is clamped to the of" the socket and secured thereto and the attachment maybe detached from said socket whenever desired by reinoving the bolts or screws Z) and e and may be reconnected with said socket by moving theparts dot the arm I) transversely of the neck a until said neck enters the collar 'b of said arm when the screvg or bolt .12 is passed 3 which the lever a may be connected with-said arm as hereinbeforedescribed and as shown .inthe; drawing.

,My invention is-not limited to the use of the chain 9 for operating the circuit making of said arm, after the socket a, and

any suitable flexible device may be substi-J tuted for said chain.

Having fully described myinvention,

what I claim as new, and desire 'to secure, by Letters Patent is 1. An attachment for electric lightsockets of the class describ d comprising a main arm formed from a strip of sheet metal bnteeii- I trally to form a collar which inclo'sesth'e neck of the socket'and two pro3ecting members connected adjacent crank lever also composed'of metal, one end portion of which is bent at an angle to the other end portion to form the shorter arm of said lever, said shorter arm of said lever being pivoted at the ends to said collarand. at the ends thereof by screws or bolts, a bell; a strip of thereof, and the longer arm of said lever'extending upwardly from and outwardly fromsaid main arm and in the same plane therewith,- said longer arm of said leverbeing provided in the top edge thereof-and ad ja'cent to the shorter arm 2. An attachment for electric light sockets ot' the class described, arm formed from a strip ofsheet metalbent centrally to form a collar which incloses theneck of the socket and two projecting mean-- bers connected adjacent to said collar and at bolts,' 'a bell a strip jot metal, one end portion of which is bent at the ends thereof by screws or crank lever also composed of an angle to the other end portion to form the shorter arm of said lever, sa d shorter thereof with a. downwardly and inwardly directed recess comprising a main arm of said lever being pivoted at'the ends thereof, and the longerarm extending upwardly from and outwardly from said main arm and in the-sameplane therewith, said longerarm of said leverbe ing provided in the top edge thereof'and adjacent to the 1 and the outer or free end of said lever being provided with a suspended flexible cord or hanger.

In testimony that I :claim the I have signed my name in; presence of the subscribing witnesses this as my invention 3rd day of September-1910;

shorter arm thereof with a downwardly and inwardly directed recess, 

